Huawei UPS5000-S-1200 kVA User Manual page 49

UPS5000-S-1200 kVA
User Manual
Silk Bypass
Screen Unit
EPO_NO In use:
Controls
the
EPO_12V
entire
UPS
system.
EPO_NC
EPO_12V
SWITCH
STATUS_O
UT
SWITCH
STATUS_0V
SWITCH
STATUS_M
T
SWITCH
STATUS_0V
SWITCH
STATUS_BP
SWITCH
STATUS_0V
SPD
0V
Issue 10 (2023-05-26)
Power Description
Unit
Reserved Emergency power-off
(EPO) port
+12 V
EPO port
+12 V
Port for monitoring the
UPS output circuit
breaker
Port for signal ground
Port for monitoring the
maintenance circuit
breaker
Port for signal ground
Port for monitoring the
bypass input circuit
breaker
Port for signal ground
Port for monitoring the
system output switch
Port for signal ground
NO TE
● The dry contact interface card takes effect only after it is set on the monitoring system.
Set the unused dry contact signal to the unused status.
● Set the EPO port to NO or NC as required.
● Single cables require dual-insulated twisted cables. If the length of a power cable is
within 25–50 m, its cross-sectional area must be 0.5 mm
Copyright © Huawei Digital Power Technologies Co., Ltd.
2 Product Overview
Status
If the normally
open (NO) port is
connected to the
EPO_12V port,
EPO is triggered.
If the normally
closed (NC) port is
disconnected from
the EPO_12V port,
EPO is triggered.
● Connected:
circuit breaker
ON
● Disconnected:
circuit breaker
OFF
● Disconnected:
circuit breaker
ON
● Connected:
circuit breaker
OFF
● Connected:
circuit breaker
ON
● Disconnected:
circuit breaker
OFF
● Connected:
system output
switch ON
● Disconnected:
system output
switch OFF
2 2
to 1.5 mm
Initial Status
Disconnected
Connected
Connected
Disconnected
Connected
Connected
.
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